Shoemaker&#39;s jack.



0. JENSEN. .Y

sHoEMAKEns JACK.' APPLICATION FILED AUG.27| ISM.

1,138,383. 'Patented May4,1915.

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G g 2y I" ,f/ l {4//4 lili 1 50 w/ Z0 l z@ n?" n 52 g WITH/[58858: '3/ INI/ENTOI? lll-lum 'hf/'mf @Wm f' Bv v ATTORNEY TH: NURRIS PETERS CO.. PHOTO-LITHO., WASHINGTN, D. C.

UNITED srn'rns PATENT oFFicE.

CLAUS JENSEN, OF SEATTLE, WASHINGTON, ASSIGNOR OF ONE-HALF TO OLSWANG BROS. &l CO., OF SEATTLE, WASHINGTON.

SHOEMAKERS JACK.

Specification of Letters Patent.

Patented May 4, 1915.

Application led August 27, 1914. Serial No. 858,883.

T0 all whom t may concern Be 1t known that I, OLAUs JENSEN, a citizen of the United States, residing at Seattle,

' venient and eilcient to operate.

With these ends in view the invention consists in the novel construction and adaptation of parts as will be hereinafter described and claimed.

In the accompanying drawing, Figure 1 is a side elevation of a shoemakers jack embodying my improvements. Fig. 2 is a front elevation of the same with the last-toe support omitted. Fig. 3 is a vertical longitudinal section of the upper portion of the standard with the last-supportin elevation. Fig. 4: is a perspective view of the last-toe support shown detached.

According to this invention I provide a standard comprising an upper member 5, a base member 6 and an intermediate member 7, which is employed only when the operator works in a standing position. Said members are separably and rotatably connected by means of tenon elements such as 8 `(Fig. 3) formed at the lower ends of the members 5 and 7 to t into sockets, as 9,

provided in the upper ends of the intermediate and base members.

10 represents a post having its upper end, as at 101, adapted to fit within a recess therefor in a last 11. The post is furthermore provided at about its midlength with a spherical portion 12 adapted to seat in a cup bearing formed in the enlarged upper end 13 of the member 5 of the standard. Below its spherical part, said post is provided with a cylindrical stub 14 which is adapted to engage in a socket 15 provided in the member 5 for securing the post in an upright position, or the post may be held in a substantially horizontal position, as indicated by broken lines A in Fig. 1, by having its stub engage under a wicket shaped lug 131 provided on said upper member, while a saddle 132 provided in the latter supports the post at the other side of the spherical part thereof. Hinged by a pin 17 to lugs 18, which extend upwardly from a floor plate 61 formed integral with said base member, is a U-shaped pedal formed of side elements 19 and an end element 191.

2O represents a strap for holding shoes or the like on the last. Said strap has its ends connected by helical springs 21 with the respective side elements 19 of the pedal.

22 is an arm pivotally connected at its upper end to ears 23 on the base by a pin 24. Said arm is provided with serrations or teeth 25 which are utilized to Vengage the element 191 of the pedal for holding the latter at selected heights in opposition to springs 26 and afford the requisite tension upon the strap through the medium of the springs 21. Another spring 27 is utilized to yieldingly push the free end of the arm 22 outwardly from the standard into position to be engaged by the pedal. The lower end of said arm is provided with an outwardly extending finger 221 to be encountered by the operators foot for convenience in pushing said arm from its engagement with the pedal wheny the strap is to be released from the work on the last. Said strap is led through guides 28 disposed at opposite sides of the head part 13 and whereby the elfective v length of the strap is not materially changed with the last supporting post in either its upright or inclined positions. f

In the manufacture of new shoes I provide a device for supporting the toe of aV last,

such device consists of a bar 29 arranged to be detachably connected to the standard by the provision of spaced collars 30 and 31 on the bar engaging over the standard, and having the lower collar 31 rest on a ange 32 provided on the standard. The upper end of the bar is provided with a concave plate 33 which serves as a stirrup for a last toe.

In operation, the post 10 may be used as before explained in either an upright position as shown by full lines in Fig. 1 or in a substantially horizontal position as indicated by broken lines A in the view. To either of such positions the springs 21 accommodate themselves without adjusting the regulating treadle therefor.

By passing the belt through the guides 28 the effective lengths of the strap for the above mentioned positions of the post is varied to but a small extent with no appreciable variation to the strain exercised by springs 21 upon the belt.

The last may not only be swung with the post in a vertical plane but may also be turned by rotating the post with respect to the aXis of the stub 11i. To both of such movements it is obvious that the ball-andsocket connection aiorded by the postpart 12 in the head 13 accommodates itself.

lVhat l claim, is :h

1. In a jack, the combination with the standard provided with strap guides and socket in its upper end, of a last supporting post having a. spherical central portion adapted to seat in sa id socket, the portion of the post below said spherical portion forming. a stub adapted to engage the standard to secure the post in substantially upright and horizontal positions, a pedal attached to the lower portion of said standard, a strap extending through said guides, springs connecting the ends of the strap with said pedal, and spring pressed means for securing thepedal in adjusted positions.

2. In a jack, the combination with a standard, a post adjustably secured thereto for rotary and yoscillatory movements, a last detachably connected to4 said post, a strap and adjustable means connected with said standard for regulating the tension of the strap, of a toe support for the last, said toe support comprising a bar revolubly connected to said standard and terminating at its upper end in a concave head.

3. In a jack, the combination of a standard formed of a plurality of interfitting parts, a post formed to make a ball-andsocket connection with the uppermost of the standard parts, means for securing said post in positions substantially in axial alinement and in rectangular relations with respect to the standard, a last adapted to be detachably secured to said post, a strap, adjustable means for regulating the tension of the strap when applied to the last and a toe support for the last comprising a bar removably mounted on said standard and terminating at its upper' end in a head adapted to receive the toe of the last.

rk4. ln a. jack, the combination with the standard provided with strap guides and a socket in its upper end, of a last-supporting post having a spherical central portion adapted to seat in said socket, the portion of the post below said spherical portion forming a stub adapted to engage the standard to secure the post in substantially upright and horizontal.positions, a pedal attached to the lower portion of said standard, a strap extendingthrough said guides and connected to said pedal, and means for securing the pedal in adjusted positions.

5. ln a jack, the combination with a standard, oi' a post formed to make a balland-socket connection with said standard, strap guides positioned at opposite sides of the standard and in proximity of the axis of said ball-andsocket connection, means for maintaining said post in positions substantially in axial alinement or in rectangular relations with respect to the standard, a last for the post, a strap passing through said guides, and adjustable means provided on the standard for regulating the tension of the strap.

Signed at Seattle, Washington, this 4th v day of August, 1914.

` OLAUS JENSEN.

`Witnesses Pinnen BARNES, B. OLswANG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

